Chott el Djerid is a large salt lake in southern Tunisia and lies in the middle of Tunisia, close to the Algerian border. It is the largest salt pan of the Sahara. In summer Chott el Djerid is almost entirely dried up, and numerous fata morganas occur. It reminded me of the "Death Valley" in the States, on a smaller scale.
Chott el Djerid was also used as a filming location for the Star Wars series.